Guidelines for testing the effects of beneficial organisms. Description of test methods (Edited by S.A. Hassan), Publication of the Working Group: "Pesticides and Beneficial Organisms", 186 pp, ISBN 92-9067-045-2
Guidelines for testing the effects of beneficial organisms. Description of test methods (Edited by S.A. Hassan), Publication of the Working Group: "Pesticides and Beneficial Organisms", 186 pp, ISBN 92-9067-045-2